Winter is coming — your air conditioner heats too. Cut heating bills by up to 67% vs electric heaters.

🇬🇧 Delivering air conditioning across the UK — free UK mainland delivery on in-stock units
LG 7.1kW Dual Vane 4-Way Cassette Indoor Unit (ARNU24GTBB4)
LG

LG 7.1kW Dual Vane 4-Way Cassette Indoor Unit (ARNU24GTBB4)

In StockEnergy A++
£1,680.000

Trade pricing available — apply or sign in for your trade rate

Dispatched in 3-5 working days
UK-Wide Delivery
Free UK mainland delivery on in-stock units

Retail prices include VAT.

The LG 7.1kW Dual Vane Cassette represents the pinnacle of commercial air conditioning technology. Engineered for high-traffic areas such as large open-plan offices, showrooms, and hospitality venues, this unit features a revolutionary dual vane design that provides superior airflow control. The system can be configured to deliver air precisely where it is needed, ensuring maximum comfort while minimising energy waste. With optional smart features like human detection and floor temperature sensing, the unit automatically adjusts its output to maintain the perfect environment. The high-efficiency heat exchanger ensures rapid cooling and heating, while the optional 5-step air purification system helps maintain excellent indoor air quality. This unit is fully compatible with LG's ThinQ ecosystem, offering remote control and monitoring capabilities. It is a premium, reliable choice for businesses that demand both aesthetic appeal and high-performance climate management.

1

Need it installed?

We'll match you with a local HVAC engineer.

Smart-home ready

Connects natively with the systems below — control by app or voice.

Google HomeAmazon Alexa
  • Free UK mainland delivery on in-stock units
  • Manufacturer warranty included
  • 14-day returns

Downloads & specs

More from LG →
Official LG video

Manufacturer instructions

Installation of the LG Dual Vane 4-Way Cassette must be performed exclusively by an authorized LG technician or dealer to prevent risks of water leakage, fire, or electric shock. The unit must be mounted horizontally in the ceiling using a level gauge, ensuring adequate clearance from walls and obstacles as specified in the installation manual. Refrigerant piping and electrical connections must follow the system's engineering specifications, often supported by LG’s LATS software for design accuracy. The unit includes a built-in drain pump, which requires careful positioning. Before first power-on, verify all connections, ensure the grille kit is properly attached, and confirm the system is configured for the specific zone requirements. Always consult the official installation manual provided with the unit for precise torque settings, wiring diagrams, and F-gas compliance procedures.

Fixed units must be installed by a qualified F-gas engineer. Find an installer — we'll match you with a local HVAC professional.

Full Specifications

Cooling Capacity24,000 BTU
Recommended Room SizeUp to 70m²
Energy RatingA++
Smart HomeGoogle Home, Amazon Alexa
Noise Level—
CategoryCeiling Cassettes
SKUARNU24GTBB4

Description

The LG 7.1kW Dual Vane Cassette represents the pinnacle of commercial air conditioning technology. Engineered for high-traffic areas such as large open-plan offices, showrooms, and hospitality venues, this unit features a revolutionary dual vane design that provides superior airflow control. The system can be configured to deliver air precisely where it is needed, ensuring maximum comfort while minimising energy waste. With optional smart features like human detection and floor temperature sensing, the unit automatically adjusts its output to maintain the perfect environment. The high-efficiency heat exchanger ensures rapid cooling and heating, while the optional 5-step air purification system helps maintain excellent indoor air quality. This unit is fully compatible with LG's ThinQ ecosystem, offering remote control and monitoring capabilities. It is a premium, reliable choice for businesses that demand both aesthetic appeal and high-performance climate management.

Compare similar units

Side-by-side specs for other ceiling cassettes in a similar BTU range.

Cooling Capacity
24,000 BTU
24,000 BTU
24,000 BTU
24,000 BTU
Room Size
Up to 70m²
Up to 70m²
Up to 70m²
70-85m2
Energy Rating
A++
A+
A+
A+
Heating Capable
Yes (heat pump)
Yes (heat pump)
Yes (heat pump)
Yes (heat pump)
Smart Home
Google Home, Amazon Alexa
Tuya/SmartLife
Amazon Alexa, Google Home
Google Assistant, Amazon Alexa
Stock
In Stock
In Stock
In Stock
Pre-Order
Price inc VAT
£1,680.00
£1,970.00
£3,170.00
£2,164.18

Annual energy savings estimate

How much this A++-rated unit could save versus a standard C-rated model, based on your usage.

This unit

195 kWh/yr

EER 13

Standard model

317 kWh/yr

EER 8

Est. saving

£32.87

122 kWh/yr less

Estimate based on the unit's energy-rating efficiency factor and cooling capacity (24,000 BTU). Actual savings vary with room size, climate and usage patterns.

Winter heating cost: this AC vs electric heaters

This unit reverses to heat your room in winter. Based on its 8 kW heat output used 5 hrs/day over a 150-day UK heating season at £0.27/kWh.

Electric heater / season

£1602

This AC / season

£534

You save / season

£1068

~67% less electricity

Heating methodElectricity / seasonCost / seasonEfficiencySummer cooling
This heat-pump AC1978 kWh£534Up to 300%
Plug-in electric heater5935 kWh£1602100%
Electric storage heater5935 kWh£1602100%

Heat output estimated from this unit's 27,000 BTU/hr rating. A heat pump moves heat (COP ≈ 3), so it uses about a third of the electricity of a direct-electric heater for the same warmth. Actual savings vary with room size, insulation, tariff and usage. See the full comparison →

You may also need

Sealey SAC5000 3-in-1 Portable Air Conditioning Unit 5,000Btu/hr
Pre-Order
Ships to EU

Sealey SAC5000 3-in-1 Portable Air Conditioning Unit 5,000Btu/hr

5,000 BTU Up to 10m²
Energy A
Drop-ship available
£291.96inc VAT
Dispatched in 2-3 working days
Sealey SACWK1 Window Sealing Kit for Air Conditioner Ducting
Pre-Order
Ships to EU

Sealey SACWK1 Window Sealing Kit for Air Conditioner Ducting

0 N/A
Energy N/A
Drop-ship available
£20.54inc VAT
Dispatched in 2-3 working days
Stiebel Eltron AWG 315 SR.2 Wall Duct
Pre-Order
Ships to EU

Stiebel Eltron AWG 315 SR.2 Wall Duct

0 N/A
Energy A++
Drop-ship available
£276.12inc VAT
Dispatched in 2-3 working days
Stiebel Eltron SRC R Wireless Temperature Controller
Pre-Order
Save £38.51
Ships to EU
Stiebel Eltron Tuya/SmartLife

Stiebel Eltron SRC R Wireless Temperature Controller

0 Up to 50m²
Energy A+
Drop-ship available
£201.49inc VAT
£240.00
Dispatched in 2-3 working days